Airpolishing or even Air-Flowing is used successfully not only for prevention in many dental practices, but also in periodontal therapy. The procedure is not yet included in the current guidelines for treating periodontitis, however. Prof. em. Dr. Ulrich Schlagenhauf, the internationally renowned periodontist and former head of the Periodontology Department at the University Hospital of Würzburg, has conducted research on periodontitis and periodontal therapy for decades.